From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Wed, 27 May 2015 06:37:27 +0000 (+0800)
Subject: crypto: scatterwalk - Add missing sg_init_table to scatterwalk_ffwd
X-Git-Tag: v4.1.12-92~3^2~249
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=c7f2297f90aa14467e6cfa34f30c0c83d933c62c;p=users%2Fjedix%2Flinux-maple.git

crypto: scatterwalk - Add missing sg_init_table to scatterwalk_ffwd

Orabug: 25243093

We need to call sg_init_table as otherwise the first entry may
inadvertently become the last.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
(cherry picked from commit fdaef75f66bba5999a94f3cd9156bf353ba2ef98)
Signed-off-by: Ethan Zhao <ethan.zhao@oracle.com>
---

diff --git a/crypto/scatterwalk.c b/crypto/scatterwalk.c
index 9c5de17d6427..9ee8ea141369 100644
--- a/crypto/scatterwalk.c
+++ b/crypto/scatterwalk.c
@@ -151,6 +151,7 @@ struct scatterlist *scatterwalk_ffwd(struct scatterlist dst[2],
 		src = sg_next(src);
 	}
 
+	sg_init_table(dst, 2);
 	sg_set_page(dst, sg_page(src), src->length - len, src->offset + len);
 	scatterwalk_crypto_chain(dst, sg_next(src), 0, 2);